CJ on Mathematics and Science

A neutral atom with a kernel of positive charge $Z$ surrounded by $Z$ electrons in some (shell) configuration can attract an outside electro...

Let us now give more perspective on the electronegativity explored by RealQM in the previous post as the decrease of energy achieved by hyp...

Electronegativity  (or rather electron affinity, see this post ) of an atom measures the decrease of total energy arising from adding an ele...